Kev Mann / mbed-dev-OS5_10_4

RTC auf true

features/mbedtls/src/sha1.c@2:7aab896b1a3b, 2019-03-13 (annotated)

Committer:
kevman
Date:
Wed Mar 13 11:03:24 2019 +0000
Revision:
2:7aab896b1a3b
Parent:
0:38ceb79fef03 
2019-03-13

Who changed what in which revision?

UserRevisionLine numberNew contents of line
kevman 0:38ceb79fef03 1 /*
kevman 0:38ceb79fef03 2 * FIPS-180-1 compliant SHA-1 implementation
kevman 0:38ceb79fef03 3 *
kevman 0:38ceb79fef03 4 * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
kevman 0:38ceb79fef03 5 * SPDX-License-Identifier: Apache-2.0
kevman 0:38ceb79fef03 6 *
kevman 0:38ceb79fef03 7 * Licensed under the Apache License, Version 2.0 (the "License"); you may
kevman 0:38ceb79fef03 8 * not use this file except in compliance with the License.
kevman 0:38ceb79fef03 9 * You may obtain a copy of the License at
kevman 0:38ceb79fef03 10 *
kevman 0:38ceb79fef03 11 * http://www.apache.org/licenses/LICENSE-2.0
kevman 0:38ceb79fef03 12 *
kevman 0:38ceb79fef03 13 * Unless required by applicable law or agreed to in writing, software
kevman 0:38ceb79fef03 14 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
kevman 0:38ceb79fef03 15 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
kevman 0:38ceb79fef03 16 * See the License for the specific language governing permissions and
kevman 0:38ceb79fef03 17 * limitations under the License.
kevman 0:38ceb79fef03 18 *
kevman 0:38ceb79fef03 19 * This file is part of mbed TLS (https://tls.mbed.org)
kevman 0:38ceb79fef03 20 */
kevman 0:38ceb79fef03 21 /*
kevman 0:38ceb79fef03 22 * The SHA-1 standard was published by NIST in 1993.
kevman 0:38ceb79fef03 23 *
kevman 0:38ceb79fef03 24 * http://www.itl.nist.gov/fipspubs/fip180-1.htm
kevman 0:38ceb79fef03 25 */
kevman 0:38ceb79fef03 26
kevman 0:38ceb79fef03 27 #if !defined(MBEDTLS_CONFIG_FILE)
kevman 0:38ceb79fef03 28 #include "mbedtls/config.h"
kevman 0:38ceb79fef03 29 #else
kevman 0:38ceb79fef03 30 #include MBEDTLS_CONFIG_FILE
kevman 0:38ceb79fef03 31 #endif
kevman 0:38ceb79fef03 32
kevman 0:38ceb79fef03 33 #if defined(MBEDTLS_SHA1_C)
kevman 0:38ceb79fef03 34
kevman 0:38ceb79fef03 35 #include "mbedtls/sha1.h"
kevman 0:38ceb79fef03 36 #include "mbedtls/platform_util.h"
kevman 0:38ceb79fef03 37
kevman 0:38ceb79fef03 38 #include <string.h>
kevman 0:38ceb79fef03 39
kevman 0:38ceb79fef03 40 #if defined(MBEDTLS_SELF_TEST)
kevman 0:38ceb79fef03 41 #if defined(MBEDTLS_PLATFORM_C)
kevman 0:38ceb79fef03 42 #include "mbedtls/platform.h"
kevman 0:38ceb79fef03 43 #else
kevman 0:38ceb79fef03 44 #include <stdio.h>
kevman 0:38ceb79fef03 45 #define mbedtls_printf printf
kevman 0:38ceb79fef03 46 #endif /* MBEDTLS_PLATFORM_C */
kevman 0:38ceb79fef03 47 #endif /* MBEDTLS_SELF_TEST */
kevman 0:38ceb79fef03 48
kevman 0:38ceb79fef03 49 #if !defined(MBEDTLS_SHA1_ALT)
kevman 0:38ceb79fef03 50
kevman 0:38ceb79fef03 51 /*
kevman 0:38ceb79fef03 52 * 32-bit integer manipulation macros (big endian)
kevman 0:38ceb79fef03 53 */
kevman 0:38ceb79fef03 54 #ifndef GET_UINT32_BE
kevman 0:38ceb79fef03 55 #define GET_UINT32_BE(n,b,i) \
kevman 0:38ceb79fef03 56 { \
kevman 0:38ceb79fef03 57 (n) = ( (uint32_t) (b)[(i) ] << 24 ) \
kevman 0:38ceb79fef03 58 | ( (uint32_t) (b)[(i) + 1] << 16 ) \
kevman 0:38ceb79fef03 59 | ( (uint32_t) (b)[(i) + 2] << 8 ) \
kevman 0:38ceb79fef03 60 | ( (uint32_t) (b)[(i) + 3] ); \
kevman 0:38ceb79fef03 61 }
kevman 0:38ceb79fef03 62 #endif
kevman 0:38ceb79fef03 63
kevman 0:38ceb79fef03 64 #ifndef PUT_UINT32_BE
kevman 0:38ceb79fef03 65 #define PUT_UINT32_BE(n,b,i) \
kevman 0:38ceb79fef03 66 { \
kevman 0:38ceb79fef03 67 (b)[(i) ] = (unsigned char) ( (n) >> 24 ); \
kevman 0:38ceb79fef03 68 (b)[(i) + 1] = (unsigned char) ( (n) >> 16 ); \
kevman 0:38ceb79fef03 69 (b)[(i) + 2] = (unsigned char) ( (n) >> 8 ); \
kevman 0:38ceb79fef03 70 (b)[(i) + 3] = (unsigned char) ( (n) ); \
kevman 0:38ceb79fef03 71 }
kevman 0:38ceb79fef03 72 #endif
kevman 0:38ceb79fef03 73
kevman 0:38ceb79fef03 74 void mbedtls_sha1_init( mbedtls_sha1_context *ctx )
kevman 0:38ceb79fef03 75 {
kevman 0:38ceb79fef03 76 memset( ctx, 0, sizeof( mbedtls_sha1_context ) );
kevman 0:38ceb79fef03 77 }
kevman 0:38ceb79fef03 78
kevman 0:38ceb79fef03 79 void mbedtls_sha1_free( mbedtls_sha1_context *ctx )
kevman 0:38ceb79fef03 80 {
kevman 0:38ceb79fef03 81 if( ctx == NULL )
kevman 0:38ceb79fef03 82 return;
kevman 0:38ceb79fef03 83
kevman 0:38ceb79fef03 84 mbedtls_platform_zeroize( ctx, sizeof( mbedtls_sha1_context ) );
kevman 0:38ceb79fef03 85 }
kevman 0:38ceb79fef03 86
kevman 0:38ceb79fef03 87 void mbedtls_sha1_clone( mbedtls_sha1_context *dst,
kevman 0:38ceb79fef03 88 const mbedtls_sha1_context *src )
kevman 0:38ceb79fef03 89 {
kevman 0:38ceb79fef03 90 *dst = *src;
kevman 0:38ceb79fef03 91 }
kevman 0:38ceb79fef03 92
kevman 0:38ceb79fef03 93 /*
kevman 0:38ceb79fef03 94 * SHA-1 context setup
kevman 0:38ceb79fef03 95 */
kevman 0:38ceb79fef03 96 int mbedtls_sha1_starts_ret( mbedtls_sha1_context *ctx )
kevman 0:38ceb79fef03 97 {
kevman 0:38ceb79fef03 98 ctx->total[0] = 0;
kevman 0:38ceb79fef03 99 ctx->total[1] = 0;
kevman 0:38ceb79fef03 100
kevman 0:38ceb79fef03 101 ctx->state[0] = 0x67452301;
kevman 0:38ceb79fef03 102 ctx->state[1] = 0xEFCDAB89;
kevman 0:38ceb79fef03 103 ctx->state[2] = 0x98BADCFE;
kevman 0:38ceb79fef03 104 ctx->state[3] = 0x10325476;
kevman 0:38ceb79fef03 105 ctx->state[4] = 0xC3D2E1F0;
kevman 0:38ceb79fef03 106
kevman 0:38ceb79fef03 107 return( 0 );
kevman 0:38ceb79fef03 108 }
kevman 0:38ceb79fef03 109
kevman 0:38ceb79fef03 110 #if !defined(MBEDTLS_DEPRECATED_REMOVED)
kevman 0:38ceb79fef03 111 void mbedtls_sha1_starts( mbedtls_sha1_context *ctx )
kevman 0:38ceb79fef03 112 {
kevman 0:38ceb79fef03 113 mbedtls_sha1_starts_ret( ctx );
kevman 0:38ceb79fef03 114 }
kevman 0:38ceb79fef03 115 #endif
kevman 0:38ceb79fef03 116
kevman 0:38ceb79fef03 117 #if !defined(MBEDTLS_SHA1_PROCESS_ALT)
kevman 0:38ceb79fef03 118 int mbedtls_internal_sha1_process( mbedtls_sha1_context *ctx,
kevman 0:38ceb79fef03 119 const unsigned char data[64] )
kevman 0:38ceb79fef03 120 {
kevman 0:38ceb79fef03 121 uint32_t temp, W[16], A, B, C, D, E;
kevman 0:38ceb79fef03 122
kevman 0:38ceb79fef03 123 GET_UINT32_BE( W[ 0], data, 0 );
kevman 0:38ceb79fef03 124 GET_UINT32_BE( W[ 1], data, 4 );
kevman 0:38ceb79fef03 125 GET_UINT32_BE( W[ 2], data, 8 );
kevman 0:38ceb79fef03 126 GET_UINT32_BE( W[ 3], data, 12 );
kevman 0:38ceb79fef03 127 GET_UINT32_BE( W[ 4], data, 16 );
kevman 0:38ceb79fef03 128 GET_UINT32_BE( W[ 5], data, 20 );
kevman 0:38ceb79fef03 129 GET_UINT32_BE( W[ 6], data, 24 );
kevman 0:38ceb79fef03 130 GET_UINT32_BE( W[ 7], data, 28 );
kevman 0:38ceb79fef03 131 GET_UINT32_BE( W[ 8], data, 32 );
kevman 0:38ceb79fef03 132 GET_UINT32_BE( W[ 9], data, 36 );
kevman 0:38ceb79fef03 133 GET_UINT32_BE( W[10], data, 40 );
kevman 0:38ceb79fef03 134 GET_UINT32_BE( W[11], data, 44 );
kevman 0:38ceb79fef03 135 GET_UINT32_BE( W[12], data, 48 );
kevman 0:38ceb79fef03 136 GET_UINT32_BE( W[13], data, 52 );
kevman 0:38ceb79fef03 137 GET_UINT32_BE( W[14], data, 56 );
kevman 0:38ceb79fef03 138 GET_UINT32_BE( W[15], data, 60 );
kevman 0:38ceb79fef03 139
kevman 0:38ceb79fef03 140 #define S(x,n) ((x << n) | ((x & 0xFFFFFFFF) >> (32 - n)))
kevman 0:38ceb79fef03 141
kevman 0:38ceb79fef03 142 #define R(t) \
kevman 0:38ceb79fef03 143 ( \
kevman 0:38ceb79fef03 144 temp = W[( t - 3 ) & 0x0F] ^ W[( t - 8 ) & 0x0F] ^ \
kevman 0:38ceb79fef03 145 W[( t - 14 ) & 0x0F] ^ W[ t & 0x0F], \
kevman 0:38ceb79fef03 146 ( W[t & 0x0F] = S(temp,1) ) \
kevman 0:38ceb79fef03 147 )
kevman 0:38ceb79fef03 148
kevman 0:38ceb79fef03 149 #define P(a,b,c,d,e,x) \
kevman 0:38ceb79fef03 150 { \
kevman 0:38ceb79fef03 151 e += S(a,5) + F(b,c,d) + K + x; b = S(b,30); \
kevman 0:38ceb79fef03 152 }
kevman 0:38ceb79fef03 153
kevman 0:38ceb79fef03 154 A = ctx->state[0];
kevman 0:38ceb79fef03 155 B = ctx->state[1];
kevman 0:38ceb79fef03 156 C = ctx->state[2];
kevman 0:38ceb79fef03 157 D = ctx->state[3];
kevman 0:38ceb79fef03 158 E = ctx->state[4];
kevman 0:38ceb79fef03 159
kevman 0:38ceb79fef03 160 #define F(x,y,z) (z ^ (x & (y ^ z)))
kevman 0:38ceb79fef03 161 #define K 0x5A827999
kevman 0:38ceb79fef03 162
kevman 0:38ceb79fef03 163 P( A, B, C, D, E, W[0] );
kevman 0:38ceb79fef03 164 P( E, A, B, C, D, W[1] );
kevman 0:38ceb79fef03 165 P( D, E, A, B, C, W[2] );
kevman 0:38ceb79fef03 166 P( C, D, E, A, B, W[3] );
kevman 0:38ceb79fef03 167 P( B, C, D, E, A, W[4] );
kevman 0:38ceb79fef03 168 P( A, B, C, D, E, W[5] );
kevman 0:38ceb79fef03 169 P( E, A, B, C, D, W[6] );
kevman 0:38ceb79fef03 170 P( D, E, A, B, C, W[7] );
kevman 0:38ceb79fef03 171 P( C, D, E, A, B, W[8] );
kevman 0:38ceb79fef03 172 P( B, C, D, E, A, W[9] );
kevman 0:38ceb79fef03 173 P( A, B, C, D, E, W[10] );
kevman 0:38ceb79fef03 174 P( E, A, B, C, D, W[11] );
kevman 0:38ceb79fef03 175 P( D, E, A, B, C, W[12] );
kevman 0:38ceb79fef03 176 P( C, D, E, A, B, W[13] );
kevman 0:38ceb79fef03 177 P( B, C, D, E, A, W[14] );
kevman 0:38ceb79fef03 178 P( A, B, C, D, E, W[15] );
kevman 0:38ceb79fef03 179 P( E, A, B, C, D, R(16) );
kevman 0:38ceb79fef03 180 P( D, E, A, B, C, R(17) );
kevman 0:38ceb79fef03 181 P( C, D, E, A, B, R(18) );
kevman 0:38ceb79fef03 182 P( B, C, D, E, A, R(19) );
kevman 0:38ceb79fef03 183
kevman 0:38ceb79fef03 184 #undef K
kevman 0:38ceb79fef03 185 #undef F
kevman 0:38ceb79fef03 186
kevman 0:38ceb79fef03 187 #define F(x,y,z) (x ^ y ^ z)
kevman 0:38ceb79fef03 188 #define K 0x6ED9EBA1
kevman 0:38ceb79fef03 189
kevman 0:38ceb79fef03 190 P( A, B, C, D, E, R(20) );
kevman 0:38ceb79fef03 191 P( E, A, B, C, D, R(21) );
kevman 0:38ceb79fef03 192 P( D, E, A, B, C, R(22) );
kevman 0:38ceb79fef03 193 P( C, D, E, A, B, R(23) );
kevman 0:38ceb79fef03 194 P( B, C, D, E, A, R(24) );
kevman 0:38ceb79fef03 195 P( A, B, C, D, E, R(25) );
kevman 0:38ceb79fef03 196 P( E, A, B, C, D, R(26) );
kevman 0:38ceb79fef03 197 P( D, E, A, B, C, R(27) );
kevman 0:38ceb79fef03 198 P( C, D, E, A, B, R(28) );
kevman 0:38ceb79fef03 199 P( B, C, D, E, A, R(29) );
kevman 0:38ceb79fef03 200 P( A, B, C, D, E, R(30) );
kevman 0:38ceb79fef03 201 P( E, A, B, C, D, R(31) );
kevman 0:38ceb79fef03 202 P( D, E, A, B, C, R(32) );
kevman 0:38ceb79fef03 203 P( C, D, E, A, B, R(33) );
kevman 0:38ceb79fef03 204 P( B, C, D, E, A, R(34) );
kevman 0:38ceb79fef03 205 P( A, B, C, D, E, R(35) );
kevman 0:38ceb79fef03 206 P( E, A, B, C, D, R(36) );
kevman 0:38ceb79fef03 207 P( D, E, A, B, C, R(37) );
kevman 0:38ceb79fef03 208 P( C, D, E, A, B, R(38) );
kevman 0:38ceb79fef03 209 P( B, C, D, E, A, R(39) );
kevman 0:38ceb79fef03 210
kevman 0:38ceb79fef03 211 #undef K
kevman 0:38ceb79fef03 212 #undef F
kevman 0:38ceb79fef03 213
kevman 0:38ceb79fef03 214 #define F(x,y,z) ((x & y) | (z & (x | y)))
kevman 0:38ceb79fef03 215 #define K 0x8F1BBCDC
kevman 0:38ceb79fef03 216
kevman 0:38ceb79fef03 217 P( A, B, C, D, E, R(40) );
kevman 0:38ceb79fef03 218 P( E, A, B, C, D, R(41) );
kevman 0:38ceb79fef03 219 P( D, E, A, B, C, R(42) );
kevman 0:38ceb79fef03 220 P( C, D, E, A, B, R(43) );
kevman 0:38ceb79fef03 221 P( B, C, D, E, A, R(44) );
kevman 0:38ceb79fef03 222 P( A, B, C, D, E, R(45) );
kevman 0:38ceb79fef03 223 P( E, A, B, C, D, R(46) );
kevman 0:38ceb79fef03 224 P( D, E, A, B, C, R(47) );
kevman 0:38ceb79fef03 225 P( C, D, E, A, B, R(48) );
kevman 0:38ceb79fef03 226 P( B, C, D, E, A, R(49) );
kevman 0:38ceb79fef03 227 P( A, B, C, D, E, R(50) );
kevman 0:38ceb79fef03 228 P( E, A, B, C, D, R(51) );
kevman 0:38ceb79fef03 229 P( D, E, A, B, C, R(52) );
kevman 0:38ceb79fef03 230 P( C, D, E, A, B, R(53) );
kevman 0:38ceb79fef03 231 P( B, C, D, E, A, R(54) );
kevman 0:38ceb79fef03 232 P( A, B, C, D, E, R(55) );
kevman 0:38ceb79fef03 233 P( E, A, B, C, D, R(56) );
kevman 0:38ceb79fef03 234 P( D, E, A, B, C, R(57) );
kevman 0:38ceb79fef03 235 P( C, D, E, A, B, R(58) );
kevman 0:38ceb79fef03 236 P( B, C, D, E, A, R(59) );
kevman 0:38ceb79fef03 237
kevman 0:38ceb79fef03 238 #undef K
kevman 0:38ceb79fef03 239 #undef F
kevman 0:38ceb79fef03 240
kevman 0:38ceb79fef03 241 #define F(x,y,z) (x ^ y ^ z)
kevman 0:38ceb79fef03 242 #define K 0xCA62C1D6
kevman 0:38ceb79fef03 243
kevman 0:38ceb79fef03 244 P( A, B, C, D, E, R(60) );
kevman 0:38ceb79fef03 245 P( E, A, B, C, D, R(61) );
kevman 0:38ceb79fef03 246 P( D, E, A, B, C, R(62) );
kevman 0:38ceb79fef03 247 P( C, D, E, A, B, R(63) );
kevman 0:38ceb79fef03 248 P( B, C, D, E, A, R(64) );
kevman 0:38ceb79fef03 249 P( A, B, C, D, E, R(65) );
kevman 0:38ceb79fef03 250 P( E, A, B, C, D, R(66) );
kevman 0:38ceb79fef03 251 P( D, E, A, B, C, R(67) );
kevman 0:38ceb79fef03 252 P( C, D, E, A, B, R(68) );
kevman 0:38ceb79fef03 253 P( B, C, D, E, A, R(69) );
kevman 0:38ceb79fef03 254 P( A, B, C, D, E, R(70) );
kevman 0:38ceb79fef03 255 P( E, A, B, C, D, R(71) );
kevman 0:38ceb79fef03 256 P( D, E, A, B, C, R(72) );
kevman 0:38ceb79fef03 257 P( C, D, E, A, B, R(73) );
kevman 0:38ceb79fef03 258 P( B, C, D, E, A, R(74) );
kevman 0:38ceb79fef03 259 P( A, B, C, D, E, R(75) );
kevman 0:38ceb79fef03 260 P( E, A, B, C, D, R(76) );
kevman 0:38ceb79fef03 261 P( D, E, A, B, C, R(77) );
kevman 0:38ceb79fef03 262 P( C, D, E, A, B, R(78) );
kevman 0:38ceb79fef03 263 P( B, C, D, E, A, R(79) );
kevman 0:38ceb79fef03 264
kevman 0:38ceb79fef03 265 #undef K
kevman 0:38ceb79fef03 266 #undef F
kevman 0:38ceb79fef03 267
kevman 0:38ceb79fef03 268 ctx->state[0] += A;
kevman 0:38ceb79fef03 269 ctx->state[1] += B;
kevman 0:38ceb79fef03 270 ctx->state[2] += C;
kevman 0:38ceb79fef03 271 ctx->state[3] += D;
kevman 0:38ceb79fef03 272 ctx->state[4] += E;
kevman 0:38ceb79fef03 273
kevman 0:38ceb79fef03 274 return( 0 );
kevman 0:38ceb79fef03 275 }
kevman 0:38ceb79fef03 276
kevman 0:38ceb79fef03 277 #if !defined(MBEDTLS_DEPRECATED_REMOVED)
kevman 0:38ceb79fef03 278 void mbedtls_sha1_process( mbedtls_sha1_context *ctx,
kevman 0:38ceb79fef03 279 const unsigned char data[64] )
kevman 0:38ceb79fef03 280 {
kevman 0:38ceb79fef03 281 mbedtls_internal_sha1_process( ctx, data );
kevman 0:38ceb79fef03 282 }
kevman 0:38ceb79fef03 283 #endif
kevman 0:38ceb79fef03 284 #endif /* !MBEDTLS_SHA1_PROCESS_ALT */
kevman 0:38ceb79fef03 285
kevman 0:38ceb79fef03 286 /*
kevman 0:38ceb79fef03 287 * SHA-1 process buffer
kevman 0:38ceb79fef03 288 */
kevman 0:38ceb79fef03 289 int mbedtls_sha1_update_ret( mbedtls_sha1_context *ctx,
kevman 0:38ceb79fef03 290 const unsigned char *input,
kevman 0:38ceb79fef03 291 size_t ilen )
kevman 0:38ceb79fef03 292 {
kevman 0:38ceb79fef03 293 int ret;
kevman 0:38ceb79fef03 294 size_t fill;
kevman 0:38ceb79fef03 295 uint32_t left;
kevman 0:38ceb79fef03 296
kevman 0:38ceb79fef03 297 if( ilen == 0 )
kevman 0:38ceb79fef03 298 return( 0 );
kevman 0:38ceb79fef03 299
kevman 0:38ceb79fef03 300 left = ctx->total[0] & 0x3F;
kevman 0:38ceb79fef03 301 fill = 64 - left;
kevman 0:38ceb79fef03 302
kevman 0:38ceb79fef03 303 ctx->total[0] += (uint32_t) ilen;
kevman 0:38ceb79fef03 304 ctx->total[0] &= 0xFFFFFFFF;
kevman 0:38ceb79fef03 305
kevman 0:38ceb79fef03 306 if( ctx->total[0] < (uint32_t) ilen )
kevman 0:38ceb79fef03 307 ctx->total[1]++;
kevman 0:38ceb79fef03 308
kevman 0:38ceb79fef03 309 if( left && ilen >= fill )
kevman 0:38ceb79fef03 310 {
kevman 0:38ceb79fef03 311 memcpy( (void *) (ctx->buffer + left), input, fill );
kevman 0:38ceb79fef03 312
kevman 0:38ceb79fef03 313 if( ( ret = mbedtls_internal_sha1_process( ctx, ctx->buffer ) ) != 0 )
kevman 0:38ceb79fef03 314 return( ret );
kevman 0:38ceb79fef03 315
kevman 0:38ceb79fef03 316 input += fill;
kevman 0:38ceb79fef03 317 ilen -= fill;
kevman 0:38ceb79fef03 318 left = 0;
kevman 0:38ceb79fef03 319 }
kevman 0:38ceb79fef03 320
kevman 0:38ceb79fef03 321 while( ilen >= 64 )
kevman 0:38ceb79fef03 322 {
kevman 0:38ceb79fef03 323 if( ( ret = mbedtls_internal_sha1_process( ctx, input ) ) != 0 )
kevman 0:38ceb79fef03 324 return( ret );
kevman 0:38ceb79fef03 325
kevman 0:38ceb79fef03 326 input += 64;
kevman 0:38ceb79fef03 327 ilen -= 64;
kevman 0:38ceb79fef03 328 }
kevman 0:38ceb79fef03 329
kevman 0:38ceb79fef03 330 if( ilen > 0 )
kevman 0:38ceb79fef03 331 memcpy( (void *) (ctx->buffer + left), input, ilen );
kevman 0:38ceb79fef03 332
kevman 0:38ceb79fef03 333 return( 0 );
kevman 0:38ceb79fef03 334 }
kevman 0:38ceb79fef03 335
kevman 0:38ceb79fef03 336 #if !defined(MBEDTLS_DEPRECATED_REMOVED)
kevman 0:38ceb79fef03 337 void mbedtls_sha1_update( mbedtls_sha1_context *ctx,
kevman 0:38ceb79fef03 338 const unsigned char *input,
kevman 0:38ceb79fef03 339 size_t ilen )
kevman 0:38ceb79fef03 340 {
kevman 0:38ceb79fef03 341 mbedtls_sha1_update_ret( ctx, input, ilen );
kevman 0:38ceb79fef03 342 }
kevman 0:38ceb79fef03 343 #endif
kevman 0:38ceb79fef03 344
kevman 0:38ceb79fef03 345 /*
kevman 0:38ceb79fef03 346 * SHA-1 final digest
kevman 0:38ceb79fef03 347 */
kevman 0:38ceb79fef03 348 int mbedtls_sha1_finish_ret( mbedtls_sha1_context *ctx,
kevman 0:38ceb79fef03 349 unsigned char output[20] )
kevman 0:38ceb79fef03 350 {
kevman 0:38ceb79fef03 351 int ret;
kevman 0:38ceb79fef03 352 uint32_t used;
kevman 0:38ceb79fef03 353 uint32_t high, low;
kevman 0:38ceb79fef03 354
kevman 0:38ceb79fef03 355 /*
kevman 0:38ceb79fef03 356 * Add padding: 0x80 then 0x00 until 8 bytes remain for the length
kevman 0:38ceb79fef03 357 */
kevman 0:38ceb79fef03 358 used = ctx->total[0] & 0x3F;
kevman 0:38ceb79fef03 359
kevman 0:38ceb79fef03 360 ctx->buffer[used++] = 0x80;
kevman 0:38ceb79fef03 361
kevman 0:38ceb79fef03 362 if( used <= 56 )
kevman 0:38ceb79fef03 363 {
kevman 0:38ceb79fef03 364 /* Enough room for padding + length in current block */
kevman 0:38ceb79fef03 365 memset( ctx->buffer + used, 0, 56 - used );
kevman 0:38ceb79fef03 366 }
kevman 0:38ceb79fef03 367 else
kevman 0:38ceb79fef03 368 {
kevman 0:38ceb79fef03 369 /* We'll need an extra block */
kevman 0:38ceb79fef03 370 memset( ctx->buffer + used, 0, 64 - used );
kevman 0:38ceb79fef03 371
kevman 0:38ceb79fef03 372 if( ( ret = mbedtls_internal_sha1_process( ctx, ctx->buffer ) ) != 0 )
kevman 0:38ceb79fef03 373 return( ret );
kevman 0:38ceb79fef03 374
kevman 0:38ceb79fef03 375 memset( ctx->buffer, 0, 56 );
kevman 0:38ceb79fef03 376 }
kevman 0:38ceb79fef03 377
kevman 0:38ceb79fef03 378 /*
kevman 0:38ceb79fef03 379 * Add message length
kevman 0:38ceb79fef03 380 */
kevman 0:38ceb79fef03 381 high = ( ctx->total[0] >> 29 )
kevman 0:38ceb79fef03 382 | ( ctx->total[1] << 3 );
kevman 0:38ceb79fef03 383 low = ( ctx->total[0] << 3 );
kevman 0:38ceb79fef03 384
kevman 0:38ceb79fef03 385 PUT_UINT32_BE( high, ctx->buffer, 56 );
kevman 0:38ceb79fef03 386 PUT_UINT32_BE( low, ctx->buffer, 60 );
kevman 0:38ceb79fef03 387
kevman 0:38ceb79fef03 388 if( ( ret = mbedtls_internal_sha1_process( ctx, ctx->buffer ) ) != 0 )
kevman 0:38ceb79fef03 389 return( ret );
kevman 0:38ceb79fef03 390
kevman 0:38ceb79fef03 391 /*
kevman 0:38ceb79fef03 392 * Output final state
kevman 0:38ceb79fef03 393 */
kevman 0:38ceb79fef03 394 PUT_UINT32_BE( ctx->state[0], output, 0 );
kevman 0:38ceb79fef03 395 PUT_UINT32_BE( ctx->state[1], output, 4 );
kevman 0:38ceb79fef03 396 PUT_UINT32_BE( ctx->state[2], output, 8 );
kevman 0:38ceb79fef03 397 PUT_UINT32_BE( ctx->state[3], output, 12 );
kevman 0:38ceb79fef03 398 PUT_UINT32_BE( ctx->state[4], output, 16 );
kevman 0:38ceb79fef03 399
kevman 0:38ceb79fef03 400 return( 0 );
kevman 0:38ceb79fef03 401 }
kevman 0:38ceb79fef03 402
kevman 0:38ceb79fef03 403 #if !defined(MBEDTLS_DEPRECATED_REMOVED)
kevman 0:38ceb79fef03 404 void mbedtls_sha1_finish( mbedtls_sha1_context *ctx,
kevman 0:38ceb79fef03 405 unsigned char output[20] )
kevman 0:38ceb79fef03 406 {
kevman 0:38ceb79fef03 407 mbedtls_sha1_finish_ret( ctx, output );
kevman 0:38ceb79fef03 408 }
kevman 0:38ceb79fef03 409 #endif
kevman 0:38ceb79fef03 410
kevman 0:38ceb79fef03 411 #endif /* !MBEDTLS_SHA1_ALT */
kevman 0:38ceb79fef03 412
kevman 0:38ceb79fef03 413 /*
kevman 0:38ceb79fef03 414 * output = SHA-1( input buffer )
kevman 0:38ceb79fef03 415 */
kevman 0:38ceb79fef03 416 int mbedtls_sha1_ret( const unsigned char *input,
kevman 0:38ceb79fef03 417 size_t ilen,
kevman 0:38ceb79fef03 418 unsigned char output[20] )
kevman 0:38ceb79fef03 419 {
kevman 0:38ceb79fef03 420 int ret;
kevman 0:38ceb79fef03 421 mbedtls_sha1_context ctx;
kevman 0:38ceb79fef03 422
kevman 0:38ceb79fef03 423 mbedtls_sha1_init( &ctx );
kevman 0:38ceb79fef03 424
kevman 0:38ceb79fef03 425 if( ( ret = mbedtls_sha1_starts_ret( &ctx ) ) != 0 )
kevman 0:38ceb79fef03 426 goto exit;
kevman 0:38ceb79fef03 427
kevman 0:38ceb79fef03 428 if( ( ret = mbedtls_sha1_update_ret( &ctx, input, ilen ) ) != 0 )
kevman 0:38ceb79fef03 429 goto exit;
kevman 0:38ceb79fef03 430
kevman 0:38ceb79fef03 431 if( ( ret = mbedtls_sha1_finish_ret( &ctx, output ) ) != 0 )
kevman 0:38ceb79fef03 432 goto exit;
kevman 0:38ceb79fef03 433
kevman 0:38ceb79fef03 434 exit:
kevman 0:38ceb79fef03 435 mbedtls_sha1_free( &ctx );
kevman 0:38ceb79fef03 436
kevman 0:38ceb79fef03 437 return( ret );
kevman 0:38ceb79fef03 438 }
kevman 0:38ceb79fef03 439
kevman 0:38ceb79fef03 440 #if !defined(MBEDTLS_DEPRECATED_REMOVED)
kevman 0:38ceb79fef03 441 void mbedtls_sha1( const unsigned char *input,
kevman 0:38ceb79fef03 442 size_t ilen,
kevman 0:38ceb79fef03 443 unsigned char output[20] )
kevman 0:38ceb79fef03 444 {
kevman 0:38ceb79fef03 445 mbedtls_sha1_ret( input, ilen, output );
kevman 0:38ceb79fef03 446 }
kevman 0:38ceb79fef03 447 #endif
kevman 0:38ceb79fef03 448
kevman 0:38ceb79fef03 449 #if defined(MBEDTLS_SELF_TEST)
kevman 0:38ceb79fef03 450 /*
kevman 0:38ceb79fef03 451 * FIPS-180-1 test vectors
kevman 0:38ceb79fef03 452 */
kevman 0:38ceb79fef03 453 static const unsigned char sha1_test_buf[3][57] =
kevman 0:38ceb79fef03 454 {
kevman 0:38ceb79fef03 455 { "abc" },
kevman 0:38ceb79fef03 456 { "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq" },
kevman 0:38ceb79fef03 457 { "" }
kevman 0:38ceb79fef03 458 };
kevman 0:38ceb79fef03 459
kevman 0:38ceb79fef03 460 static const size_t sha1_test_buflen[3] =
kevman 0:38ceb79fef03 461 {
kevman 0:38ceb79fef03 462 3, 56, 1000
kevman 0:38ceb79fef03 463 };
kevman 0:38ceb79fef03 464
kevman 0:38ceb79fef03 465 static const unsigned char sha1_test_sum[3][20] =
kevman 0:38ceb79fef03 466 {
kevman 0:38ceb79fef03 467 { 0xA9, 0x99, 0x3E, 0x36, 0x47, 0x06, 0x81, 0x6A, 0xBA, 0x3E,
kevman 0:38ceb79fef03 468 0x25, 0x71, 0x78, 0x50, 0xC2, 0x6C, 0x9C, 0xD0, 0xD8, 0x9D },
kevman 0:38ceb79fef03 469 { 0x84, 0x98, 0x3E, 0x44, 0x1C, 0x3B, 0xD2, 0x6E, 0xBA, 0xAE,
kevman 0:38ceb79fef03 470 0x4A, 0xA1, 0xF9, 0x51, 0x29, 0xE5, 0xE5, 0x46, 0x70, 0xF1 },
kevman 0:38ceb79fef03 471 { 0x34, 0xAA, 0x97, 0x3C, 0xD4, 0xC4, 0xDA, 0xA4, 0xF6, 0x1E,
kevman 0:38ceb79fef03 472 0xEB, 0x2B, 0xDB, 0xAD, 0x27, 0x31, 0x65, 0x34, 0x01, 0x6F }
kevman 0:38ceb79fef03 473 };
kevman 0:38ceb79fef03 474
kevman 0:38ceb79fef03 475 /*
kevman 0:38ceb79fef03 476 * Checkup routine
kevman 0:38ceb79fef03 477 */
kevman 0:38ceb79fef03 478 int mbedtls_sha1_self_test( int verbose )
kevman 0:38ceb79fef03 479 {
kevman 0:38ceb79fef03 480 int i, j, buflen, ret = 0;
kevman 0:38ceb79fef03 481 unsigned char buf[1024];
kevman 0:38ceb79fef03 482 unsigned char sha1sum[20];
kevman 0:38ceb79fef03 483 mbedtls_sha1_context ctx;
kevman 0:38ceb79fef03 484
kevman 0:38ceb79fef03 485 mbedtls_sha1_init( &ctx );
kevman 0:38ceb79fef03 486
kevman 0:38ceb79fef03 487 /*
kevman 0:38ceb79fef03 488 * SHA-1
kevman 0:38ceb79fef03 489 */
kevman 0:38ceb79fef03 490 for( i = 0; i < 3; i++ )
kevman 0:38ceb79fef03 491 {
kevman 0:38ceb79fef03 492 if( verbose != 0 )
kevman 0:38ceb79fef03 493 mbedtls_printf( " SHA-1 test #%d: ", i + 1 );
kevman 0:38ceb79fef03 494
kevman 0:38ceb79fef03 495 if( ( ret = mbedtls_sha1_starts_ret( &ctx ) ) != 0 )
kevman 0:38ceb79fef03 496 goto fail;
kevman 0:38ceb79fef03 497
kevman 0:38ceb79fef03 498 if( i == 2 )
kevman 0:38ceb79fef03 499 {
kevman 0:38ceb79fef03 500 memset( buf, 'a', buflen = 1000 );
kevman 0:38ceb79fef03 501
kevman 0:38ceb79fef03 502 for( j = 0; j < 1000; j++ )
kevman 0:38ceb79fef03 503 {
kevman 0:38ceb79fef03 504 ret = mbedtls_sha1_update_ret( &ctx, buf, buflen );
kevman 0:38ceb79fef03 505 if( ret != 0 )
kevman 0:38ceb79fef03 506 goto fail;
kevman 0:38ceb79fef03 507 }
kevman 0:38ceb79fef03 508 }
kevman 0:38ceb79fef03 509 else
kevman 0:38ceb79fef03 510 {
kevman 0:38ceb79fef03 511 ret = mbedtls_sha1_update_ret( &ctx, sha1_test_buf[i],
kevman 0:38ceb79fef03 512 sha1_test_buflen[i] );
kevman 0:38ceb79fef03 513 if( ret != 0 )
kevman 0:38ceb79fef03 514 goto fail;
kevman 0:38ceb79fef03 515 }
kevman 0:38ceb79fef03 516
kevman 0:38ceb79fef03 517 if( ( ret = mbedtls_sha1_finish_ret( &ctx, sha1sum ) ) != 0 )
kevman 0:38ceb79fef03 518 goto fail;
kevman 0:38ceb79fef03 519
kevman 0:38ceb79fef03 520 if( memcmp( sha1sum, sha1_test_sum[i], 20 ) != 0 )
kevman 0:38ceb79fef03 521 {
kevman 0:38ceb79fef03 522 ret = 1;
kevman 0:38ceb79fef03 523 goto fail;
kevman 0:38ceb79fef03 524 }
kevman 0:38ceb79fef03 525
kevman 0:38ceb79fef03 526 if( verbose != 0 )
kevman 0:38ceb79fef03 527 mbedtls_printf( "passed\n" );
kevman 0:38ceb79fef03 528 }
kevman 0:38ceb79fef03 529
kevman 0:38ceb79fef03 530 if( verbose != 0 )
kevman 0:38ceb79fef03 531 mbedtls_printf( "\n" );
kevman 0:38ceb79fef03 532
kevman 0:38ceb79fef03 533 goto exit;
kevman 0:38ceb79fef03 534
kevman 0:38ceb79fef03 535 fail:
kevman 0:38ceb79fef03 536 if( verbose != 0 )
kevman 0:38ceb79fef03 537 mbedtls_printf( "failed\n" );
kevman 0:38ceb79fef03 538
kevman 0:38ceb79fef03 539 exit:
kevman 0:38ceb79fef03 540 mbedtls_sha1_free( &ctx );
kevman 0:38ceb79fef03 541
kevman 0:38ceb79fef03 542 return( ret );
kevman 0:38ceb79fef03 543 }
kevman 0:38ceb79fef03 544
kevman 0:38ceb79fef03 545 #endif /* MBEDTLS_SELF_TEST */
kevman 0:38ceb79fef03 546
kevman 0:38ceb79fef03 547 #endif /* MBEDTLS_SHA1_C */